Nut cracker



FIG. 1 is a front and right side perspective view of a nut cracker showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof, the bottom being the same;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof. 

The ornamental design for a nut cracker, as shown and described. 